Investigators wanted to assess the accuracy of self-reported smoking status. Participants are asked whether they currently smoke or not. In addition, laboratory tests are performed on hair samples to determine presence or absence of nicotine. The laboratory assessment is considered the gold standard, or truth about nicotine consumption. The data are as follows:

Nicotine Absent

Nicotine Present

Self-reported nonsmoker

82

14

Self-reported smoker

12

52

What is the specificity of self-reported smoking status? (round answer to the 4th decimal place)